Smart Gear Training conducted 4 years of research and sports testing to give you the ultimate form of on-body resistance. The goal; enabling your body to adapt to a functional amount of resistance (often only 4 to 8 lbs) and accept it as natural body weight. This would protect your body’s movement integrity, and evenly distribute the load force. It was introduced in 1995. The initial application for the vest was very focused. A weighted vest that could be worn while playing,